First just checking you have the water tower set with MODE=GRID

As you are using grid power I'm wondering if that is the issue as the largest region I had tested was just a 2x2. It's supposed to be a region wide thing but maybe there is an issue. One way to check is to edit the water tower and in the description it will show the water level, e.g.  52;en-GB  means it's at 52%.   If you change that to 1;en-GB  and then reset the scripts that will force it to ask far water, so you can then look to see if the water pump starts up or not. 

Read More...